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Technology for extracting torreya grandis seed oil by aqueous process

A technology of Chinese torreya seed and water agent method, which is applied in the field of fine processing and comprehensive utilization of agricultural products, can solve the problems of organic solvent residue, high production cost, and low oil yield, and achieve no solvent residue, high oil quality, and high oil yield. The effect of nutritional value

Inactive Publication Date: 2016-11-23
SHAOXING UNIV YUANPEI COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional pressing method has a low oil yield and many impurities; the organic solvent extraction method takes a long time, and the problem of organic solvent residue is difficult to solve; supercritical fluid extraction is a new type of extraction and separation technology, but it has not been widely used in production. The cost is high; the operating conditions of the aqueous method are relatively mild, and the quality of the extracted oil is better

Method used

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  • Technology for extracting torreya grandis seed oil by aqueous process
  • Technology for extracting torreya grandis seed oil by aqueous process
  • Technology for extracting torreya grandis seed oil by aqueous process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: single factor experimental screening

[0031] 1. Effect of liquid-material ratio on oil extraction rate: at 60°C, pH 7, leaching time 30min, the ratio of solid-liquid is 1:2, 1:3, 1:4, 1:5, 1:6, respectively. The effect of different solid-liquid ratios on the extraction rate, the results are shown in figure 1 . Depend on figure 1 It can be seen that the optimum liquid-to-material ratio is 1:3-1:5g / mL.

[0032] 2. Effect of feed liquid pH on oil extraction rate: at a material-liquid ratio of 1:3, 60°C, leaching time of 30 minutes, adjust the pH to 5, 6, 7, 8, and 9 respectively, and compare the effects of different pH on oil extraction rate impact, see figure 2 . Depend on figure 2 It can be seen that the more suitable pH value is 6-8.

[0033] 3. Effect of extraction temperature on oil extraction rate: at pH 7, extraction time is 30 minutes, material-water ratio is 1:3, see the results image 3 . have image 3 It can be seen that the best tempe...

Embodiment 2

[0035] Example 2: Orthogonal Process Optimization of Torreya Torreya Seed Oil Extraction Conditions

[0036] 1. Orthogonal experiment

[0037] On the basis of the single factor test, the four factors of material-water ratio, slurry pH, extraction time, and extraction temperature were selected, and the oil extraction rate was used as an index to conduct an orthogonal experiment. 9 (3 4 ) Orthogonal experiment to optimize the process conditions of Torreya seed oil extraction by aqueous method.

[0038] Table 1 Orthogonal test factors and levels

[0039] factor

solid to liquid ratio

pH

extraction time

extraction temperature

1

1:3

6

20

50

2

1:4

7

30

60

3

1:5

8

40

70

[0040] Table 2 Orthogonal experiment results of optimization of extraction conditions of Chinese torreya seed oil

[0041]

[0042] From the range R values ​​in Table 2, it can be concluded that the influencing factors on the e...

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Abstract

The invention relates to a technology for extracting torreya grandis seed oil by an aqueous process. The technology comprises the following steps: (1) shelling the raw material torreya grandis seeds, fetching the kernels, and baking at certain temperature; smashing and grinding; adding water of appropriate temperature into slurry according to certain proportion for leaching; stirring in a thermostat water bath; and regulating the pH value; (2) transferring the material into a centrifugal cup and centrifuging at certain speed; and (3) after the centrifugation, refreezing for some time, taking out the product and then heating for a certain period of time in a water bath of certain temperature, and centrifuging to obtain the oil phase. The technology provided by the invention has the advantages of good repeatability, stable quality and relatively high extraction rate of torreya grandis seed oil. Meanwhile, the method for extracting torreya grandis seed oil reaches the national standard for edible oil and is a simple, feasible and environment-friendly oil extraction technology, and lays a foundation for further comprehensive development of torreya grandis seed oil.

Description

technical field [0001] The invention belongs to the technical field of fine processing of agricultural products and its comprehensive utilization, and in particular relates to a process for extracting Chinese torreya seed oil by an aqueous method. Background technique [0002] Torreya grandis (Torreya grandis 'Merrilli') is an evergreen tree of the yew family Torreya genus. It is an excellent variety of the variation type in the Torreya grandis (Torrey arandis) through artificial cultivation, and it is also the only artificially cultivated variety in the Torreya grandis. Torreya torreya, as a unique tree species in my country, has been cultivated for more than 1,000 years. Torreya torreya fruit is rich in nutrition and unique in flavor. It is a treasure among dried fruits, and it has a variety of purposes such as medicine and food, and has high economic value. On May 29, 2013, Shaoxing Kuaijishan Torreya Torreya Group was recognized by the Food and Agriculture Organization ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/14
CPCC11B1/04C11B1/14
Inventor 孙小红叶丹娜王国夫胡绍泉杜轶君邱桂佳
Owner SHAOXING UNIV YUANPEI COLLEGE
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